Thread guide driving arrangement for textile machines, especially for artificial silk



Sept. 23, 119414. 0. BOCHMANN I 2,256,858 THREAD GUIDE DRIVINGARRANGEMENT FOR TEXTILE MACHINES,

ELPECIALLY FOR ARTIFICIAL SILK Filed May 3, 1940 RUBBER Invent r: 4:; ,M

certain inconvenience.

Patented Sept. 23, 1941 THREAD GUIDE DRIVING ARRANGEMENT 'FOR- TEXTILEMACHINES, ESPECIALLY FOR ARTIFICIAL SILK Otto Bochmann,Remscheid-Lennep, Bhineland,

assignor to Banner. Masc Germany,

fabrik Aktiengesellschaft, Wnppertal-Oberbarmen, Germany Application May3, 1940, Serial No. 333,162 In Germany February 14, 19.39

4 Claims. -(c1. 242-158) u For the driving of the thread guides ontextile machines, that is for the transmission of the movement of thecurve upon the thread guides or thread guide bars for the obtention ofthe reciprocating movement hinges are necessary inmost instances. Suchhinges have, however, a The more hinges exist in the transmissionelements the clearance becomes greater this having evidently anunfavorable efiect upon the reversing movement of the thread guides.Bobbins are thus produced the winding of which is not always perfectaccording to the required thread guide movement. Hinge arrangementsresult further in that, especially at the reversing points of the threadguide, a certain unrest occurs as these hinges do not exert a dampingeffect, but fully transmit upon the thread guide the shock produced bythe curve at the return movement. This evidently also unfavorablyinfluences the thread laying. This is especially prejudicial when highchanging speeds occur, the more so as it is then necessary to make assmall as possible the masses to be moved, which means that the threadguide rods must be as light as possible. In the case of thread'guidearrangements on artificial silk spinning machines other inconveniencesoccur when hinges are employed, for instance, that hinge points whichare above the acid bath wear rapidly. It is further a greatinconvenience to have hinge points above the acid bath which have to belubricated continually. In the latter instance it easily happens thatthe bobbins to be wound are soiled, and the oil can easily come intocontact with the acid bath so that the bath is useless.

In order to avoid all these inconveniences the hinges necessary for thetransmission of the reciprocating movement are made, according to theinvention, of hingelesselastic connections. For instance rubber or otherelastic artificial masses or textiles may be used as connections.Between the mutually movable elements a corresponding elastic plate ispreferably arranged, for instance a plate of rubber, which. at both endsis connected with the elements by clamping.

By this construction it is attained that direct hinges are avoided andthe movability is greater than before. Not only the advantage of perfectfreeness from clearance is thus obtained, but such hingeless connectionsexert also a damping efiect, so that, particularly at the reversingpoints of the thread guides, the shocks caused by the curve areintercepted in the hingeless connection.- By this arrangement anabsolutely quiet reciprocating movement of the thread guides isobtained,

so that, even if the thread guide rods and other elements are of lighterconstruction in order .to

attain high spinningand changing speeds, any unrest in the thread guidemovement is securely avoided. 'There exists further the advantage that,when such connections are employed in artificial silk spinning machines,these connec-' tions can no longer be corroded by the acid bath and thatno lubricating is necessary. Consequently, there exists no longer thedanger of soiling for the material or for the acid bath. According tothe invention it is possible to obtain, even'at the highest spinningspeeds, a perfect thread laying and thereby a correspondingly goodwinding of the bobbin.

An embodiment ,of the invention is illustrated by way of example in theonly figure of the. accompanying drawing which shows this arrangementdiagrammatically on a spinning machine for artificial silk.

In the example shown, the winding of the bob- 'bin I is effected by athread guide lever 2, which is connected with a bar 3 by a hingelessconnection 4. Inthis instance a rubber plate is used, which is clampedat one end in the bar 3 and at the other end in the thread guide lever 2and thus permits a movement of the thread guide lever. A changing rod 5acts upon the thread guide lever 2 and is. connected with this lever byan elastic element 6. In the present case two hinge points are necessaryfor the reciprocatingmovement of the threadguide, these hinge pointsbeing replaced according'ato the invention by hingeless connections.

I claim:

1. A thread guide driving arrangement for textile machines, especiallyfor artificial silk, comprising a thread guide, and elastic hingeconnections for the thread guide operative for the shocklesstransmission of reciprocatory .movements upon the thread guide, theelastic hinge connections being made of rubber.

2. A thread guide driving arrangement for textile machines, especiallyfor artificial silk, comprising a thread guide, an elastic hingeconnection forming a pivot support for the thread guide and means foroscillating the thread guide operative for the shockless transmission ofreciprocatory movements upon the thread guide.

3. A thread guide driving arrangement for textile machines, especiallyfor artificial silk, com-. prising a thread guide, and elastic hingeconnections for the thread guide operative for the shocklesstransmission of reciprocatory movements upon'the thread guide, thethread guide including a lever and a fixed bar adjacent one end of thelever, and the elastic hinge connections including a rubber plate havingclamping support at its ends on the thread guide lever and bar.

4. A thread guide driving arrangement for textile machines, especiallyfor artificial silk, comprising a thread guide, and elastic hingeconnections for the thread guide operative for the shockiesstransmission of reciprocatory movelever and a fixed bar to which theother end of the rubber plate is attached. v

I O'I'IO BOCHMANN.

